Google, Amazon, Microsoft, and Cloudflare revealed this week that they battled massive, record-setting distributed denial of service attacks against their cloud infrastructure in August and September. DDoS attacks, in which attackers attempt to overwhelm a service with junk traffic to bring it down, are a classic internet menace, and hackers are always developing new strategies to make them bigger or more effective. The recent attacks were particularly noteworthy, though, because hackers generated them by exploiting a vulnerability in a foundational web protocol. This means that while patching efforts are well underway, fixes will need to essentially reach every web server globally before these attacks can be fully stamped out.
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